Conference PaperPDF Available

Puppeteering an AI - Interactive Control of a Machine-Learning based Artificial Dancer

Authors:
  • Macromedia University of Applied Sciences & Hochschule Offenburg

Abstract

This paper describes the authors' first experiments in creating an artificial dancer whose movements are generated through a combination of algorithmic and interactive techniques with machine learning. This approach is inspired by the time honoured practice of puppeteering. In puppeteering, an articulated but inanimate object seemingly comes to live through the combined effects of a human controlling select limbs of a puppet while the rest of the puppet's body moves according to gravity and mechanics. In the approach described here, the puppet is a machine-learning-based artificial character that has been trained on motion capture recordings of a human dancer. A single limb of this character is controlled either manually or algorithmically while the machine-learning system takes over the role of physics in controlling the remainder of the character's body. But rather than imitating physics, the machine-learning system generates body movements that are reminiscent of the particular style and technique of the dancer who was originally recorded for acquiring training data. More specifically, the machine-learning system operates by searching for body movements that are not only similar to the training material but that it also considers compatible with the externally controlled limb. As a result, the character playing the role of a puppet is no longer passively responding to the puppeteer but makes movement decisions on its own. This form of puppeteering establishes a form of dialogue between puppeteer and puppet in which both improvise together, and in which the puppet exhibits some of the creative idiosyncrasies of the original human dancer.
Puppeteering an AI - Interactive Control of a
Machine-Learning based Artificial Dancer
Daniel Bisig
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1. Introduction
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... These methods operate on the level of the motion itself rather than its encoding. The first method combines the control of the orientation of a joint with iterative autoencoding [12] ( fig. 9 top row). The second method combines the control of the target position of a joint with forward kinematics and the application of latent difference vectors [11] ( fig. 9 middle row). ...
Conference Paper
Full-text available
Computer-based generative approaches possess a great creative potential in Contemporary Dance, in particular for artistic realisations that combine dance and technology. At the same time, the adoption and dissemination of generative approaches in dance is hampered by the fact that Dance and Technology is a small subfield within Contemporary Dance, with Generative Dance occupying an even smaller niche within this subfield. The work presented in this paper tries to ameliorate this situation by supporting artistic communities in Contemporary Dance and Generative Art with practical resources in the form of source code, dance data, educational articles, and documentations of exemplary artistic realisations. This material is meant to motivate and facilitate the selection from and adoption of a wide range of computational techniques and their use as foundations for realising dance specific generative systems. These techniques include both computer simulations and machine learning models that have proven useful in the author's own collaborations with dancers and choreographers for translating embodied creation principles into generative procedures. With regards to the integration of generative systems into the creative process, the provided material differentiates itself from other existing tools and collections in that it supports artists in devising their own idiosyncratic generative systems instead of working with a readily available but inscrutable software. Accordingly, this material aligns with artistic approaches that attribute a central role to the ideation and development of a generative system within a creative process.
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